Search a number
-
+
72976112 = 241119139157
BaseRepresentation
bin1000101100110…
…00011011110000
312002022120101222
410112120123300
5122140213422
611124044212
71544200226
oct426303360
9162276358
1072976112
1138214040
1220533668
1312171341
149998b16
156617842
hex45986f0

72976112 has 80 divisors (see below), whose sum is σ = 164572800. Its totient is φ = 31000320.

The previous prime is 72976103. The next prime is 72976147. The reversal of 72976112 is 21167927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464738 + ... + 464894.

It is an arithmetic number, because the mean of its divisors is an integer number (2057160).

Almost surely, 272976112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72976112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82286400).

72976112 is an abundant number, since it is smaller than the sum of its proper divisors (91596688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72976112 is a wasteful number, since it uses less digits than its factorization.

72976112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 328 counting only the distinct ones).

The product of its digits is 10584, while the sum is 35.

The square root of 72976112 is about 8542.6056914738. The cubic root of 72976112 is about 417.8883274251. Note that the first 3 decimals are identical.

The spelling of 72976112 in words is "seventy-two million, nine hundred seventy-six thousand, one hundred twelve".

Divisors: 1 2 4 8 11 16 19 22 38 44 76 88 139 152 157 176 209 278 304 314 418 556 628 836 1112 1256 1529 1672 1727 2224 2512 2641 2983 3058 3344 3454 5282 5966 6116 6908 10564 11932 12232 13816 21128 21823 23864 24464 27632 29051 32813 42256 43646 47728 58102 65626 87292 116204 131252 174584 232408 240053 262504 349168 414637 464816 480106 525008 829274 960212 1658548 1920424 3317096 3840848 4561007 6634192 9122014 18244028 36488056 72976112